#include<bits/stdc++.h>
using namespace std;
int main(){
	freopen("bike.in" , "r" , stdin);
	freopen("bike.out" , "w" , stdout);
	double bike , walk;
	int s;
	cin >> s;
	bike = 27 + 23 + s / 3.0;
	walk = s / 1.2;
	if(bike < walk){
		cout << "Bike" << endl;
	}
	else if(bike == walk){
		cout << "All" << endl;
	}
	else if(bike > walk){
		cout << "Walk" << endl;
	}
	return 0;
}
